Question

how many number of caco3 moles present in 200gms of caco3

Answer 1

Molecular mass of caco3=100u
Molar mass= 100g
Thus no. of moles= given mass/molar mass
=200/100
=2 moles.

Answer 2

Answer: 2 moles

Explanation: Given:

Mass of $CaCO_3=200g$

Molar mass of $CaCO_3=40+12+3(16)=100g/mol$

To calculate the moles, we use the formula:

$Moles=\frac{\text{Given mass}}{\text{Molar mass}}$

Putting the values in the equation:

$Moles=\frac{200g}{100g/mol}=2$

Thus the number of moles of $CaCO_3$ in 200 grams of $CaCO_3$ are 2.